Ext.define('BM.store.TreeTokens', {
    extend: 'Ext.data.TreeStore',
    proxy: {
            type: 'ajax',
            url: 'data/tokenTree.json'
        },
     root: {
            text: 'Token',
            id: '0',
            expanded: true
      },
      folderSort: true,
      sorters: [{
            property: 'id',
            direction: 'ASC'
      }]
});